Diurnal variation of apoplastic ascorbate in winter wheat leaves in relation to ozone detoxification
文献类型：期刊论文
| 作者 | Wang, Liang; Pang, Jing; Feng, Zhaozhong; Zhu, Jianguo; Kobayashi, Kazuhiko |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2015-11 |
| 卷号 | 207页码:413-419 |
| 关键词 | Apoplast Ascorbate Detoxification Ozone Triticum aestivum L |
| 英文摘要 | Besides stomatal closure, biological detoxification is an important protection mechanism for plants against ozone (O-3). This study investigated the diurnal changes of ascorbate (a major detoxification agent) in the apoplast and leaf tissues of winter wheat grown under ambient air field conditions. Results showed the reduced ascorbate in the apoplast (ASC(apo)) exhibited a peak in late morning or midday, mismatching with either the maximum external O-3 concentrations in mid-afternoon or the maximum stomatal O-3 uptake between late morning and mid-afternoon. In contrast, the ASC in leaf tissues remained stable throughout the day. The investigations conducted in a Free-Air Concentration Elevation of O-3 system confirmed that the diurnal variations of the ASC(apo) were induced more by the daily variations of O-3 concentrations rather than the cumulative O-3 effects. In conclusion, the O-3-stress detoxification should be a dynamic variable rather than a fixed threshold as assumed in the stomatal flux-based O-3 dose metrics. (C) 2015 Elsevier Ltd. All rights reserved. |
| 研究领域[WOS] | Environmental Sciences |
| WOS记录号 | WOS:000366617500047 |
| 公开日期 | 2016-03-08 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32289]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Liang,Pang, Jing,Feng, Zhaozhong,et al. Diurnal variation of apoplastic ascorbate in winter wheat leaves in relation to ozone detoxification[J]. ENVIRONMENTAL POLLUTION,2015,207:413-419. |
| APA | Wang, Liang,Pang, Jing,Feng, Zhaozhong,Zhu, Jianguo,&Kobayashi, Kazuhiko.(2015).Diurnal variation of apoplastic ascorbate in winter wheat leaves in relation to ozone detoxification.ENVIRONMENTAL POLLUTION,207,413-419. |
| MLA | Wang, Liang,et al."Diurnal variation of apoplastic ascorbate in winter wheat leaves in relation to ozone detoxification".ENVIRONMENTAL POLLUTION 207(2015):413-419. |
入库方式： OAI收割
来源：生态环境研究中心
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